MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, a tactic often used for SEO spam or phishing. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the 'SE_PASSWORD_ARCHIVE_LURE' suggests a common phishing technique where a password is provided to decrypt a malicious payload. The ClamAV detection further supports its malicious nature, identifying it as a 'Pdf.Phishing.Trojan'. No scripts were extracted, but the presence of embedded URLs and the overall structure point towards a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://philabc.ru/pbw?utm_term=english+speaking+practice+lessons+pdf
- https://cdn-cms.f-static.net/uploads/4500187/normal_60676c2c270d5.pdf
- https://cdn-cms.f-static.net/uploads/4446494/normal_6029dff6d73e5.pdf
- https://static.s123-cdn-static-d.com/uploads/4374175/normal_60b1c831e16e0.pdf
- https://cdn-cms.f-static.net/uploads/4382407/normal_5fd1cad62fa21.pdf
- https://lizodeva.weebly.com/uploads/1/3/5/3/135342900/e146864b4412b5.pdf
- https://cdn-cms.f-static.net/uploads/4490265/normal_601553da14b75.pdf
- https://rijifupipi.weebly.com/uploads/1/3/1/4/131453414/98c41cc2a075822.pdf
- https://cdn-cms.f-static.net/uploads/4386092/normal_6062a0751fb95.pdf
- https://static.s123-cdn-static.com/uploads/4485822/normal_5ff625d6d2e9c.pdf
- https://vogavova.weebly.com/uploads/1/3/1/6/131606390/5776480.pdf
- https://cdn-cms.f-static.net/uploads/4499942/normal_60461f76bccf9.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/3ea03ded-f865-4b62-8164-e123d4f58bc8/reset_password_cisco_linksys_wrt160n_v3.pdf
- https://uploads.strikinglycdn.com/files/87db2791-59de-4073-8e82-52f08a9ad40a/7432194722.pdf
- https://uploads.strikinglycdn.com/files/afa322dc-af54-492c-9037-298512fa1d8a/49032263071.pdf
- https://uploads.strikinglycdn.com/files/55c22a3d-6f38-4fc7-824a-e06de3fd1fd3/70490777420.pdf
- https://uploads.strikinglycdn.com/files/eb5b80e6-1f0c-4ea2-9af4-21aa9d03eab4/ditudaladawu.pdf
- https://uploads.strikinglycdn.com/files/0a78b0cf-55c0-4a23-a960-24b1ddd19f6c/can_you_replace_the_battery_on_a_vivofit_jr.pdf
- https://uploads.strikinglycdn.com/files/654cdc7e-9fd6-4181-98ef-7d3a4d91cffe/papojozazun.pdf
- https://uploads.strikinglycdn.com/files/6dbbf320-ce09-49f2-80c6-842112abedb3/vmware_nsx-t_reference_design_guide_2.5.pdf
- https://uploads.strikinglycdn.com/files/f8a61596-756e-4efb-be2a-c86c585f6da5/human_sexuality_diversity_in_contemporary_america_free.pdf
- https://uploads.strikinglycdn.com/files/14f3ddcd-b7b6-4974-8fd8-c3b38ebd87a9/36380811619.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fdc0.bin2475158049fed965cf743dd0f4c2be23f7889f93baccea6eb6cf39056ee799eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC0 | 5436 bytes |
font_01_sfnt_off00011040.bin51b90c9fb14d262a2aeea899478b9e8b5c6ba375eed2a334d969956b61aeb16e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11040 | 11220 bytes |
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